Intro to the Skull Picture Cards Flashcards
Name the bones, holes, and the things that go through the holes.
- Frontal bone
- Nasal bones
- Supraorbital foramen - supraorbital nerve (from V1) goes through it
- Infraorbital foramen - infraorbital nerve (from V2) goes through it
- Zygomatic bone
- Maxillae bone
- Mental foramen - mental nerve (from V3) goes through it
Name deez bones.
- Frontal bone
- Parietal bone
- Occipital bone
- Temporal bone
- Mastoid process
- Styloid process
- Zygomatic bone
- Greater wing of the sphenoid bone
- Maxilla
- Nasal bone
- Lacrimal bone
What is this spot called? What is its clinical significance? What are those grooves?
The pterion is a thin spot of the skull that can fracture and rupture the middle meningeal artery or branches, which run in the grooves seen on the right.
Its an infant’s skull
- Anterior fontanelle
- Coronal suture
- Sphenoidal fontanelle
- Squamous suture
- Occipital suture
- Mastoid fontanelle
- Anterior fontanelle
- Metopic suture
- Posterior fontanelle
- Coronal suture
- Bregma
- Saggital suture
- Lambda
- Lambdoid suture
Name the two ridges and the two spaces.
- Superior temporal line
- Inferior temporal line
- Temporal fossa
- Infratemporal fossa
Name these two thingys. What lives inside #1?
- Pterygopalatine fossa - the pterygopalatine ganglion is in it.
- Pterygomaxillary fissure
Also name the hole that #2 comes out of.
- Auriculotemporal nerve
- Trunk of mandibular nerve (V3) coming out of the foramen ovale
- Deep temporal nerves
- Inferior alveolar nerve
- Chorda tympani nerve
- Long buccal nerve
- Lingual nerve
- Mental nerve
For #3, name what goes through those holes. For #7, state what is contained inferior to it.
- Body of the sphenoid bone
- Cribiform plate
- Olfactory nerves (CN I) go through the cribiform plate holes
- Anterior fossa
- Middle fossa
- Posterior fossa
- Petrous part of the temporal bone (a ridge) - inner and middle ear are underneath it.
- Temporal bone (squamous part)
- Greater wing of the sphenoid bone
- Lesser wing of the sphenoid bone
- Foramen magnum
For #1 and 4, name the holes and what goes through them.
- Superior orbital fissure - CN III, IV, VI, V1 (opthalmic) go through it.
- Lesser wing
- Greater wing
- Foramen rotundum - V2 goes through
- Pterygoid process
- Medial pterygoid plate
- Lateral pterygoid plate
- Trigeminal (CN V) ganglion
- Maxillary nerve (V2)
- Ophthalmic nerve (V1)
- Superior orbital fissure
- Supraorbital and supratrochlear nerves
- Infraorbital nerve
- Maxillary sinus
- Superior alveolar nerves
- Foramen rotundum
- Pterygopalatine fossa with pterygopalatine ganglia
- Mandibular nerve (V3)
Name the openings + what goes through, bones, and stuff.
- Maxilla bone
- Pterygoid process (lateral + medial pterygoid plates)
- Sphenoid bone
- Petrotympanic fissure - exit for chorda tympani
- Carotid canal - opening for internal carotid artery
- Jugular foramen - for IJV, CNs IX, X, XI
- Stylomastoid foramen - opening for the trunk of facial nerve
- Foramen spinosum - for middle meningeal artery
- Foramen ovale - for V3
- Palatine (horizontal plate)
Figure this mess out.
- Cribiform plate - CN 1 olfactory nerves go through the holes
- Superior orbital fissure - CN III, IV, VI, V1
- Foramen lacerum - nothing goes through it!
- Internal acoustic meatus - CN VII, VIII
- Hypoglossal canal - CN XII
- Jugular foramen - CN IX, X, XI, IJV
- Foramen spinosum - middle meningeal artery
- Foramen ovale - CN V3
- Foramen rotundum - CN V2
- Cavernous sinuses
- Optic canal - CN II
- Sella turcica for the pituitary
- Anterior clinoid processes
Also state which one is the only one that drains into the inferior meatus.
- Maxillary sinus
- Frontal sinus
- Ethmoid air cells
- Nasolacrimal duct - drains to inferior meatus
- Sphenoid meatus
Please name the sinuses.
- Frontal sinuses
- Ethmoidal sinuses
- Sphenoid sinuses